Lock slider



June 1,' 1965 L. H. MORIN LOCK SLIDER Filed Nov. 2, 1962 INVENTOR Lou/5 H MOR/N United States Patent 3,186,053 LOCK SLIDER Louis H. Morin, 125 Beechwood Ave., Bronx, N.Y. Filed Nov. 2, 1962, Ser. No. 235,062 4 Claims. (Cl. 24-20514) This invention relates to sliders for use in coupling and uncoupling .separable fastener stringers and, particularly, to sliders of what I term the low silhouette or thin structure adapted for use on separable fasteners, primarily wherein the scoops are attached to one surface only of the stringers.

More particularly, the invention deals with a slider structure which is initially formed in a manner .to permit free assemblage of coupled stringers therewith; where after, the slider is compressed in movement of the walls into closer proximity to each other to retain the stringers against displacement from the slider.

Still more particularly, the invention deals with a slider structure having means for definitely supporting a spring lock, or the lock element thereof, in inoperative position in providing free movement of the slider along the stringers. Still further, it is an object of this invention to produce a lock slider capable of being compressed as described above without injury or destruction of the lock mechanism or its proper function.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:

FIG. 1 is a plan view of a slider made according to my invention, with parts of the construction broken away and part in section.

FIG. 2 is a side and longitudinal sectional view of the slider, as seen in FIG. 1, both views illustrating the slider in its initially formed and non-compressed contour, tl1e spring lock of the slider being diagrammatically shown in open or unlocked position in dotted lines.

FIG. 3 is a section substantially on the line 33 of FIG. 2 indicating, in full lines, the slider in its compressed position, the normal position of one wall being indicated in dotted lines, portions of a pair of stringers being diagrammatically outlined and the inoperative position of the spring lock being also illustrated in dotted lines, part of the construction and background showing being omitted.

, FIG. 4 is a sectional view, generally similar to FIG. 2,

showing only part of the construction and illustrating a modification, part of separable fastener stringers being also diagrammatically illustrated; and

FIG. 5 is a schematic sectional view of part of the slider on the broken line 5-5 of FIG. 4 showing the arrangement of the lock element with respect to the scoops of a pair of stringers. 1

Considering FIGS. 1 to 3, inclusive, I have shown a slider 10, comprising a front wall 11 anda back wall 12 spaced at .the wide end of the slider in a connecting web 13, having a recessed portion 14 formed substantially in the contracted end 15, which contraction is clearly illustrated in the sectional portion ofIFIG. 1.' The wall 12, at the wide end of the slider, is of less thickness,- as clearly noted at 16 in FIG. 2 of the drawing, and the sur- 3,186,053 Patented June 1, 1965 face 17, at the thicker contracted end, joins the surface 16 in bevelled wall portions, as clearly noted at 18 in FIGS. 1 and 2. By providing the thinner wall, as at 16, this, in combination with the recess 14, facilitates compression of the slider body from the initial forming thereof, as noted in FIG. 2, to the predetermined spacing of the walls 11 and 12, as illustrated in full lines in FIG. 3.

It Will also be noted, from a consideration of FIG. 2 of the drawing, that the inner surface 19 of the wall 11 has an extended backing and tape guide portion 20 terminating in alinement with one side 21 of a transverse aperture 22 in the wall 11, in which the lock element 23 of a spring lock 24 operates.

On the opposed or outer surface of the wall 11 are spaced raised platforms 25 and 26, having projecting rivet portions 27 and 28 for securing a longitudinal plate 29 to the platforms, the plate 29 having, on its inner surface, an inwardly projecting cam portion 30, in conjunction with which the spring lock 24 operates. One end of the spring lock 24 is apertured to engage the rivet 27, as seen at 31 in FIG. 2 of the drawing, and is arranged inwardly of the plate 29. The spring lock 24 has an offset rounded portion, with an elongated aperture 32 therein to give greater flexibility to the spring. It will appear, from a consideration of FIG. 2, that the offset lock element 23 extends substantially at right angles to the end of the offset rounded portion in its positioning and movement in the aperture 22 and, in the locked position, the element 23 bears against the end of 20 and the surface 21 of the aperture, as clearly shown. The outer surface 11' of the wall 11 has, in registration with the aperture 22 and of greater width than the aperture and also of greater lateral extension, an oblong recess 33. The lateral extension of the recess 33 is sufficient to receive the rounded pivot end 34 of a pull 35, as illustrated in FIG. 3 of the" drawing, where this rounded pivot end is diagrammatically illustrated in dotted lines in the hold-open position of the spring lock 24, the spring lock or the lock element 23 thereof being shown in operative position in full lines. The elongated aperture at the pivot end portion of the pull 35 is clearly illustrated at 36.

In FIG. 3 of the drawing, I have diagrammatically illustrated the result of compression of the slider body in movement of the wall 12 into closer proximity to the wall 11, in which operation, the wall 11 and its associated parts, including the plate 29, are supported in a back-up nest, so as to resist the compression operation and, in this operation, the recess, as at 14, facilitates flow of the metal in the connecting web, facilitating the compression operation. This operation takes place as and when a pair of'stringers 37, 37', having beads 38, 38 thereon and scoops 39, 39' are positioned within the slider body. The scoops 39, 39' are only diagrammatically shown in FIG. 3 of the drawing and no reference to contour thereof is made, except inillustration of angular walls 39" on the tape surfaces of the scoops extending beyond the tape edges, which would be part of the normal coupling end portions of the scoops, as well-known in the art. Also considering FIG. 3 of the drawing, it will be apparent that the lock element is contracted downwardly and has bevelled sides 23' at its free end in forming that part of the element 23 which operatively engages the scoops, preparatory to their coupling engagement in establishing a lock retaining the slider against movement on the stringers, which locked position is shown in FIGS. 2 and 3 of the drawing in full lines; whereas, in said figures, I have indicated in dotted lines the position of the element 23 and the spring lock 24 when in its inoperative position.

From the foregoing, it will be apparent that, from the locked position, an operator, in opening a garment having the stringers attached thereto, need only manually move the pull into the dotted line position of FIG. 2 and, then, the pull can be released from the manual grasp and the sides of the garment can be pulled apart and the slider will freely move along the stringers in separating the garment parts. This is by virtue of the fact that the pivot end 34 of the pull is definitely retained in the recess 33 in what I term the hold-open position of the slider. The pull can only be removed from this hold-open position by manual movement of the pivot of the pull from the dotted line position of FIG. 2 to the full line position, or at least to a position beyond limits of the recess 33. In referring to a garment, this is only by way of illustrating one of numerous uses of fasteners of the kind under consideration.

In the above described operation of movement of the spring lock 24 into the hold-open position, it will appear, from a consideration of FIG. 2 of the drawing, that the spring lock 24 is moved into tensional engagement with the cam 30, so that the spring lock will operate to urge and hold the pivot 34 of the pull 35 in the recess 33.

In FIGS. 4 and 5, I have shown a modified adaptation of my invention and, in FIG. 4, I have shown at a spring lock having a lug 41 riveted or otherwise fixed to the free end portion thereof. The lug is generally L- shaped in form and includes an angularly offset lock element 42 positioned forwardly of the contracted end 43 of the web 44 of the slider, the contracted end 43 being clearly illustrated in FIG. 5.

In FIG. 4, 45 represents a wall, similar to the wall 12, and at 46 is shown the wall, similar to the wall 11.

At 47 and 48 I have shown, at least in part, platforms, similar to the platforms 25 and 26, to which is secured a plate 49, having a cam portion 50 on its inner surface. The wall 46 has an aperture 51 therein, in which the element 42 operates and, adjacent the aperture, the wall is recessed, as seen at 52, for the lug 41 to seat thereon in checking inward movement of the element 42, as clear- :ly shown in full lines in FIG. 4 of the drawing. The upper surface of the web 44 or the contracted end 43 thereof has a transverse recess 53, in which the pivot end 54 of a pull 55 is adapted to seat in the hold-open position of the slider, that is to say, when the spring lock 40 assumes the dotted line position, as diagrammatically seen in FIG. 4, in operative engagement with the cam 50, which retains the pivot 54 in its hold-open position in the same manner as retention of the pivot 34 in the recess 33, as shown in FIGS. 2 and 3 of the drawing. In FIG. 4 of the drawing, parts of two stringers are diagrammatically shown and a clearer diagrammatic showing of the stringers is noted at 56, 56 in FIG. 5, the coupling ends of the scoops of the stringers being illustrated at 57 and 57', from which it will be noted that, when the lock element 42 is in operative position, as shown in section in FIG. 5, this element will block movement of the coupling end portions 57, 57' into operative engagement. However, when the element 42 is moved into the dotted line position, as illustrated in FIG. 4, the scoops will be free to move into coupled and uncoupled positions with respect to each other.

With both forms of construction, it will appear that the lock element is operating upon the tape side of the stringers, particularly with stringers having scoops arranged upon one surface only of the stringer tapes, as now known in the art. With this arrangement, the side flanges of the two sliders are disposed on the wall 12, as at in FIG. 2, or the wall 4 5, asindicated, in part, at 45 7 the scoops on the single surface of the stringers, with the stringer tapes moving along inner surfaces of the opposed walls as, for example, the wall 11 of FIGS. 2 and 3, or the wall 46 of FIG. 4.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A slider for semi-invisible separable fasteners having tapes with scoops mounted on only one side thereof, comprising a body having spaced walls joined at the wide end in a connecting web, one wall adapted to engage the tape of said separable fastener and not the scoops thereof and having spaced raised platforms joined by a plate fixed to said platform, said plate having a cam-like projection on the inner surface thereof intermediate said platform, said Wall intermediate the platform having an aperture opening into a channel portion of the slider body, a spring lock fixed to one of said platforms and adapted when in its inoperative position to bear against said cam-like projection for support, said lock having a lock element operating in the aperture of said wall and adapted to extend between the edges of the tape of disengaged stringers into the channel of the slider body and engaging scoops mounted only on the side of said stringer tapes opposite to said one Wall of the slider in retaining the slider against movement on said stringers, the outer surface of said wall intermediate the platform having a transverse recess adjacent the aperture in said Wall, a pull longitudinally movable of the slider body having a pivot end arranged between the outer surface of said wall and the inner surface of said plate and operatively engaging said spring lock in movement of the lock element from an operative position to an inoperative holdopen position, the pivot end of said pull operating in the recess of said wall in retaining the spring lock and the lock element thereof in said hold-open position and the other wall of the slider body having side flanges partially defining the scoop channel of the slider body.

'2. A compression slider for semi-invisible separable fasteners having tapes with scoops mounted on only one side thereof, comprising a body having spaced walls joined at the wide end in a connecting web, said web intermediate said walls having a recessed portion at its inner contracted end facilitating compression movement of the walls into predetermined spacing one with respect to the other, one wall adapted to engage the tapes of said separable fastener and not the scoops thereof and having spaced raised platforms joined by a plate fixed to said platform, said plate having a cam-like projection on the inner surface thereof intermediate said platform, said wall intermediate the platform having an aperture opening into a channel portion of the slider body, a spring lock fixed to one of said platforms and adapted when in its inoperative position to bear against said cam-like projection for support, said lock having a lock element operating in the aperture of said wall and adapted to extend between the edges of the tap of disengage-d stringers into the channel of the slider body and engaging scoops mounted only on the side of said stringer tapes opposite to said one wall of the slider in retaining the slider against movement on said stringers, the outer surface of said wall intermediate the platforms having a transverse recess adjacent the aperture in said wall, a pull longitudinally movable of the slider body having a pivot end arranged between the outer surface of said wall and the inner surface of said plate and operatively engaging said spring lock in movement of the lock element from an operative position to an inoperative hold-open position, the pivot end of said pull operating in the recess of said wall in retaining the spring lock and the lock element thereof in said hold-open position and the other wall of the slider body having side flanges partially defining the scoop channel of the slider body. i 1 i 3. A slider as defined 11 claim 5 yieldably retaining the pivot end of the pull in the recess of said first named Wall.

4. A slider as defined in claim 1, having a lug element comprising a lug fixed to the free end portion of said lock, said lug being generally L-shaped in form, and the first named wall of the slider body having a recess receiving part of said lug in checking inward movement of said lock element.

References Cited by the Examiner UNITED STATES PATENTS Winterhalter 24205.14

Lackritz 24-20515 Ehrnann.

Morin 29-409 Joy. Ehmann.

Huelster 24-205.14

FOREIGN PATENTS France. Switzerland.

DONLEY J. STOCKING, Primary Examiner.

M. HENSON WOOD, JR., Examiner. 

1. A SLIDER FOR SEMI-INVISIBLE SEPARABLE FASTENERS HAVING TAPES WITH SCOOPS MOUNTED ON ONLY ONE SIDE THEREOF, COMPRISING A BODY HAVING SPACED WALLS JOINED AT THE WIDE END IN A CONECTION WEB, ONE WALL ADAPTED TO ENGAGE THE TAPE OF SAID SEPARATABLE FASTENER AND NOT THE SCOOPS THEREOF AND HAVING SPACED RAISED PLATFORMS JOINED BY A PLATE FIXED TO SAID PLATFORM, SAID PLATE HAVING A CAN-LIKE PROJECTION ON THE INNER SURFACE THEREOF INTERMEDIATE SAID PLATFORM, SAID WALL INTERMEDIATE THE PLATFORM HAVING AN APERTURE OPENING IN A CHANNEL PORTION OF THE SLIDER BODY, A SPRING LOCK FIXED TO ONE OF SAID PLATFORMS AND ADAPTED WHEN IN ITS INOPERATIVE POSITION TO BEAR HAVING A SAID CAM-LIKE PROJECTION FOR SUPPORT, SAID LOCK HAVINNG A LOCK ELEMENT OPERATING IN THE APERTURE OF SAID WALL AND ADAPTED TO EXTEND BETWEEN THE EDGES OF THE TAPE OF DISENGAGED STRINGERS IN THE CHANNEL OF THE SLIDER BODY AND ENGAGING SCOOPS MOUNTED ONLY ON THE SIDE OF SAID STRINGER 